Acyl derivatives of hydroxylamine. X. Determination of conformation of hydroxamic acid derivatives by means of dipole moments

1965 ◽  
Vol 30 (3) ◽  
pp. 652-663 ◽  
Author(s):  
O. Exner
1968 ◽  
Vol 46 (11) ◽  
pp. 1873-1880 ◽  
Author(s):  
O. Exner ◽  
M. H. Benn ◽  
Frances Willis

The configurations and conformations of S-methyl benzothiohydroxamic acid (3) and its S-oxo and S,S-dioxo derivatives (5) and (7) were established by means of a graphical comparison of their dipole moments with those of the corresponding p-nitro compounds.The proton magnetic resonance and infrared spectra of these compounds were also studied.It is concluded that the relative stability of stereoisomers in the series of compounds C6H5C(NOH)X seems to depend more on the electronic nature of the group X than on its steric requirements.


ChemInform ◽  
2014 ◽  
Vol 45 (27) ◽  
pp. no-no
Author(s):  
Gavara Govinda Rajulu ◽  
Halehatty Seephya Bhojya Naik ◽  
Abhilash Viswanadhan ◽  
Jayaraman Thiruvengadam ◽  
Kondodiyil Rajesh ◽  
...  

1951 ◽  
Vol 73 (8) ◽  
pp. 3584-3588 ◽  
Author(s):  
Charles S. Copeland ◽  
M. Wesley Rigg

2014 ◽  
Vol 62 (2) ◽  
pp. 168-175 ◽  
Author(s):  
Gavara Govinda Rajulu ◽  
Halehatty Seephya Bhojya Naik ◽  
Abhilash Viswanadhan ◽  
Jayaraman Thiruvengadam ◽  
Kondodiyil Rajesh ◽  
...  

1990 ◽  
Vol 68 (9) ◽  
pp. 1523-1526
Author(s):  
P. Brito ◽  
M. Mechetti

A method for the determination of dipole moment values based on Brot's theory is proposed. It takes into account the influence of the molecular anisotropies of shape and polarizability on the permittivity of a mixture. Starting from measurements performed on dilute solutions and from the knowledge of the molecular structure of some chlorinated derivatives of α-cyanostilbene and 1,3 derivatives of benzene, the best parameters of an ellipsoid used for the representation of a polar anisotropic molecule are determined. The dipole moments obtained, using benzene and tetrachloromethane as solvents, are finally compared to values from the literature. Keywords: dipole moment, Brot's formalism, molecular anisotropy.


Polyhedron ◽  
2007 ◽  
Vol 26 (8) ◽  
pp. 1625-1633 ◽  
Author(s):  
Péter Buglyó ◽  
Eszter Márta Nagy ◽  
Etelka Farkas ◽  
Imre Sóvágó ◽  
Daniele Sanna ◽  
...  

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